CN204819140U - Planogrinder main shaft bearing structure - Google Patents
Planogrinder main shaft bearing structure Download PDFInfo
- Publication number
- CN204819140U CN204819140U CN201520524207.9U CN201520524207U CN204819140U CN 204819140 U CN204819140 U CN 204819140U CN 201520524207 U CN201520524207 U CN 201520524207U CN 204819140 U CN204819140 U CN 204819140U
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- main shaft
- double
- angular contact
- planograinder
- supporting structure
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- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The utility model discloses a planogrinder main shaft bearing structure belongs to planogrinder technical field, the power distribution box comprises a box body, rotate on the box and install the main shaft, all stretch out at the both ends of main shaft the box, the main shaft anterior with be equipped with conical bore biserial cylindrical roller bearing and first biserial angular contact ball bearing between the box, first biserial angular contact ball bearing is located the inboard of conical bore biserial cylindrical roller bearing, the rear portion of main shaft with be equipped with second biserial angular contact ball bearing between the box. The utility model provides a planogrinder main shaft bearing structure has guaranteed not only that the main shaft satisfies the grinding requirement radial with the ascending rigidity homoenergetic of axle to improved the rotary precision and the rot. Stability of main shaft of main shaft, and then guaranteed the machining precision of work piece, simple structure simultaneously, the long service life of each part.
Description
Technical field
The utility model belongs to planograinder technical field, particularly relates to a kind of planograinder main shaft supporting structure.
Background technology
Grinding application is comparatively extensive, is one of precision machined main method of machine parts.And high precision numerical control grinding machine is the high accuracy process equipment that the precision mechanics industry such as military project, space flight, cutter, measurer, Machine Manufacture are badly in need of, be the important guarantee means of the manufacturing industry accuracy of manufacture.
Planograinder adopts planer-type layout, its main shaft supporting structure is used for supports main shaft, and main shaft, for installing emery wheel, is adding man-hour, the rotating accuracy direct relation of main shaft the machining accuracy of workpiece, and therefore main shaft supporting structure is one of important factor in order of grinding machine machining accuracy.
At present, two row tapered roller bearings are installed in the leading section that the main shaft supporting structure of existing planograinder is typically employed in main shaft, the back-to-back combination of two row tapered roller bearings, rearward end is installed a row tapered roller bearing, due to the limitation of taper roll bearing itself and the restriction of main axis length, cause the rigidity of main shaft low, thus main shaft is made to be easy to when bearing grinding force be lifted and to produce certain rocking, cause the rotating accuracy of main shaft to decline thereupon, and then cause the workpiece fineness that grinds poor, be difficult to the requirement on machining accuracy reached needed for workpiece.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of planograinder main shaft supporting structure, to solve the limitation of existing main shaft supporting structure self, make the rigidity of main shaft low, cause the rotating accuracy of main shaft low, be difficult to the technical problem of the requirement on machining accuracy reached needed for workpiece.
For solving the problems of the technologies described above, the technical solution of the utility model is: planograinder main shaft supporting structure, comprise casing, described casing is rotatablely equipped with main shaft, described casing is all stretched out at the both ends of described main shaft, conical bore double row cylindrical roller and the first double-row angular contact bal bearing is provided with between the front portion of described main shaft and described casing, described first double-row angular contact bal bearing is positioned at the inner side of described conical bore double row cylindrical roller, is provided with the second double-row angular contact bal bearing between the rear portion of described main shaft and described casing.
Improve as one, the back-to-back setting of described first double-row angular contact bal bearing, described second double-row angular contact bal bearing is arranged face-to-face.
Improve as one, described casing comprises sleeve, and the two ends of described sleeve are respectively equipped with drive end bearing bracket and rear end cap, and the two ends of described main shaft stretch out described drive end bearing bracket and rear end cap respectively.
Improve as one, between described drive end bearing bracket and conical bore double row cylindrical roller, be provided with potted component.
Improve as one, the front external part of described main shaft is provided with screw rod and the prismoid section for installing emery wheel successively.
Improve as one, the rear external part of described main shaft is provided with belt pulley.
After have employed technique scheme, the beneficial effects of the utility model are: because planograinder main shaft supporting structure devises casing, main shaft, conical bore double row cylindrical roller, first double-row angular contact bal bearing and the second double-row angular contact bal bearing, thus between the front portion and casing of main shaft, four bearings are provided with, two bearings are provided with between the rear portion and casing of main shaft, make main shaft supporting structure reliable, and conical bore double row cylindrical roller, first double-row angular contact bal bearing and the second double-row angular contact bal bearing can reasonably bear radial load and axial force, ensure that main shaft all can meet grinding requirement in the rigidity on radial and axial, thus improve the rotating accuracy of main shaft and the stability of main shaft gyration, and then ensure that the machining accuracy of workpiece, structure is simple simultaneously, the long service life of each parts.The planograinder main shaft supporting structure that the utility model provides not only ensure that main shaft all can meet grinding requirement in the rigidity on radial and axial, thus improve the rotating accuracy of main shaft and the stability of main shaft gyration, and then ensure that the machining accuracy of workpiece, structure is simple simultaneously, the long service life of each parts.
Due to the back-to-back setting of the first double-row angular contact bal bearing, further increase the rigidity of main shaft.
Because described second double-row angular contact bal bearing is arranged face-to-face, described casing comprises sleeve, and the two ends of described sleeve are respectively equipped with drive end bearing bracket and rear end cap, and the two ends of described main shaft stretch out described drive end bearing bracket and rear end cap respectively, makes structure simple, easy accessibility.
Owing to being provided with potted component between described drive end bearing bracket and conical bore double row cylindrical roller, ensure that the sealing between drive end bearing bracket and conical bore double row cylindrical roller, make conical bore double row cylindrical roller realize lubrication reliably.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1, casing, 11, sleeve, 12, drive end bearing bracket, 13, rear end cap, 2, main shaft, 21, screw rod, 22, prismoid section, 23, belt pulley, 3, conical bore double row cylindrical roller, the 4, first double-row angular contact bal bearing, the 5, second double-row angular contact bal bearing, 6, sealing ring.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of planograinder main shaft supporting structure, comprise casing 1, casing 1 is rotatablely equipped with main shaft 2, casing 1 is all stretched out at the both ends of main shaft 2, in order to make structure simple, be convenient to dismounting, casing 1 comprises sleeve 11, and the two ends of sleeve 11 are respectively equipped with drive end bearing bracket 12 and rear end cap 13, and the two ends of main shaft 2 stretch out drive end bearing bracket 12 and rear end cap 13 respectively.
The front external part of main shaft 2 is provided with screw rod 21 and the prismoid section 22 for installing emery wheel successively, and the rear external part of main shaft 2 is provided with belt pulley 23.
Conical bore double row cylindrical roller 3 and the first double-row angular contact bal bearing 4 is provided with between the front portion of main shaft 2 and casing 1, first double-row angular contact bal bearing 4 is positioned at the inner side of conical bore double row cylindrical roller 3, is provided with the second double-row angular contact bal bearing 5 between the rear portion of main shaft 2 and casing 1.
Owing to being provided with four bearings between the front portion of main shaft 2 and casing 1, two bearings are provided with between the rear portion of main shaft 2 and casing 1, make main shaft supporting structure reliable, and conical bore double row cylindrical roller 3, first double-row angular contact bal bearing 4 and the second double-row angular contact bal bearing 5 can reasonably bear radial load and axial force, ensure that main shaft 2 all can meet grinding requirement in the rigidity on radial and axial, thus improve the rotating accuracy of main shaft 2 and the stability of main shaft gyration, and then ensure that the machining accuracy of workpiece, structure is simple simultaneously, the long service life of each parts.
In the present embodiment, in order to improve the rigidity of main shaft 2 further, the back-to-back setting of above-mentioned first double-row angular contact bal bearing 4.
In order to make structure simple, be convenient to dismounting, above-mentioned second double-row angular contact bal bearing 5 is arranged face-to-face.
In order to ensure the sealing between drive end bearing bracket 12 and conical bore double row cylindrical roller 3, potted component is provided with between drive end bearing bracket 12 and conical bore double row cylindrical roller 3, potted component is preferably sealing ring 6, certainly, potted component also can select those skilled in the art's other seals known, makes conical bore double row cylindrical roller 3 realize reliable lubrication.
The planograinder main shaft supporting structure that the utility model provides not only ensure that main shaft all can meet grinding requirement in the rigidity on radial and axial, thus improve the rotating accuracy of main shaft and the stability of main shaft gyration, and then ensure that the machining accuracy of workpiece, structure is simple simultaneously, the long service life of each parts.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. planograinder main shaft supporting structure, comprise casing, described casing is rotatablely equipped with main shaft, described casing is all stretched out at the both ends of described main shaft, it is characterized in that, be provided with conical bore double row cylindrical roller and the first double-row angular contact bal bearing between the front portion of described main shaft and described casing, described first double-row angular contact bal bearing is positioned at the inner side of described conical bore double row cylindrical roller, is provided with the second double-row angular contact bal bearing between the rear portion of described main shaft and described casing.
2. planograinder main shaft supporting structure according to claim 1, is characterized in that, the back-to-back setting of described first double-row angular contact bal bearing, described second double-row angular contact bal bearing is arranged face-to-face.
3. planograinder main shaft supporting structure according to claim 1, is characterized in that, described casing comprises sleeve, and the two ends of described sleeve are respectively equipped with drive end bearing bracket and rear end cap, and the two ends of described main shaft stretch out described drive end bearing bracket and rear end cap respectively.
4. planograinder main shaft supporting structure according to claim 3, is characterized in that, is provided with potted component between described drive end bearing bracket and conical bore double row cylindrical roller.
5. according to the planograinder main shaft supporting structure in Claims 1-4 described in any one claim, it is characterized in that, the front external part of described main shaft is provided with screw rod and the prismoid section for installing emery wheel successively.
6. according to the planograinder main shaft supporting structure in Claims 1-4 described in any one claim, it is characterized in that, the rear external part of described main shaft is provided with belt pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520524207.9U CN204819140U (en) | 2015-07-18 | 2015-07-18 | Planogrinder main shaft bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520524207.9U CN204819140U (en) | 2015-07-18 | 2015-07-18 | Planogrinder main shaft bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204819140U true CN204819140U (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520524207.9U Active CN204819140U (en) | 2015-07-18 | 2015-07-18 | Planogrinder main shaft bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204819140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139575A (en) * | 2017-07-13 | 2017-09-08 | 青岛黎马敦包装有限公司 | A kind of special main shaft of offset press |
-
2015
- 2015-07-18 CN CN201520524207.9U patent/CN204819140U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139575A (en) * | 2017-07-13 | 2017-09-08 | 青岛黎马敦包装有限公司 | A kind of special main shaft of offset press |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lu Shichao Inventor after: Li Yong Inventor after: Pang Lili Inventor after: Su Meiting Inventor after: Liu Kai Inventor after: Guo Yang Inventor after: Zhou Mingfeng Inventor before: Lu Shichao Inventor before: Li Yong Inventor before: Pang Lili Inventor before: Su Meiting Inventor before: Liu Kai Inventor before: Guo Yang Inventor before: Zhu Mingfeng |
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| COR | Change of bibliographic data |